package com.vote.config;
  
import com.alibaba.druid.pool.DruidDataSource;
import com.alibaba.druid.support.http.StatViewServlet;
import com.alibaba.druid.support.http.WebStatFilter;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;  
import org.springframework.beans.factory.annotation.Value;  
import org.springframework.context.annotation.Bean;  
import org.springframework.context.annotation.Configuration;  
import org.springframework.context.annotation.Primary;
import org.springframework.boot.web.servlet.FilterRegistrationBean;
import org.springframework.boot.web.servlet.ServletRegistrationBean;
import javax.sql.DataSource;  
import java.sql.SQLException;  
  
@Configuration  
public class DruidConfig {  
  
    private static final Logger LOGGER = LoggerFactory.getLogger(DruidConfig.class);  
  
    @Value("${spring.datasource.driverClassName}")  
    private String driverClassName;  
    @Value("${spring.datasource.url}")  
    private String url;  
    @Value("${spring.datasource.username}")  
    private String username;  
    @Value("${spring.datasource.password}")  
    private String password;  
    @Value("${spring.datasource.initialSize}")  
    private int initialSize;  
    @Value("${spring.datasource.minIdle}")  
    private int minIdle;  
    @Value("${spring.datasource.maxActive}")  
    private int maxActive;  
    @Value("${spring.datasource.maxWait}")  
    private int maxWait;  
    @Value("${spring.datasource.validationQuery}")  
    private String validationQuery;  
    @Value("${spring.datasource.testOnBorrow}")  
    private boolean testOnBorrow;  
    @Value("${spring.datasource.testOnReturn}")  
    private boolean testOnReturn;  
    @Value("${spring.datasource.testWhileIdle}")  
    private boolean testWhileIdle;  
    @Value("${spring.datasource.timeBetweenEvictionRunsMillis}")  
    private int timeBetweenEvictionRunsMillis;  
    @Value("${spring.datasource.minEvictableIdleTimeMillis}")  
    private int minEvictableIdleTimeMillis;  
    @Value("${spring.datasource.removeAbandoned}")  
    private boolean removeAbandoned;  
    @Value("${spring.datasource.removeAbandonedTimeout}")  
    private int removeAbandonedTimeout;  
    @Value("${spring.datasource.logAbandoned}")  
    private boolean logAbandoned;  
    @Value("${spring.datasource.filters}")  
    private String filters;  
    @Value("${spring.datasource.poolPreparedStatements}")  
    private boolean poolPreparedStatements;  
    @Value("${spring.datasource.maxPoolPreparedStatementPerConnectionSize}")  
    private int maxPoolPreparedStatementPerConnectionSize;  
  
    @Bean  
    @Primary  
    public DataSource dataSource() {  
        DruidDataSource datasource = new DruidDataSource();  
  
        datasource.setDriverClassName(driverClassName);  
        datasource.setUrl(url);  
        datasource.setUsername(username);  
        datasource.setPassword(password);  
        //其它配置  
        datasource.setInitialSize(initialSize);  
        datasource.setMinIdle(minIdle);  
        datasource.setMaxActive(maxActive);  
        datasource.setMaxWait(maxWait);  
        datasource.setTimeBetweenEvictionRunsMillis(timeBetweenEvictionRunsMillis);  
        datasource.setMinEvictableIdleTimeMillis(minEvictableIdleTimeMillis);  
        datasource.setValidationQuery(validationQuery);  
        datasource.setTestWhileIdle(testWhileIdle);  
        datasource.setTestOnBorrow(testOnBorrow);  
        datasource.setTestOnReturn(testOnReturn);  
        datasource.setPoolPreparedStatements(poolPreparedStatements);  
        datasource.setMaxPoolPreparedStatementPerConnectionSize(maxPoolPreparedStatementPerConnectionSize);  
        try {  
            datasource.setFilters(filters);  
        } catch (SQLException e) {  
            LOGGER.error("druid configuration initialization filter", e);  
        }  
        return datasource;  
    }

    /**
     * 注册一个StatViewServlet
     * @return
     */
    @Bean
    public ServletRegistrationBean DruidStatViewServle2(){
        ServletRegistrationBean servletRegistrationBean = new ServletRegistrationBean(new StatViewServlet(),"/druid2/*");

        //添加初始化参数：initParams
        /** 白名单，如果不配置或value为空，则允许所有 */
        servletRegistrationBean.addInitParameter("allow","127.0.0.1,192.0.0.1");
        /** 黑名单，与白名单存在相同IP时，优先于白名单 */
        servletRegistrationBean.addInitParameter("deny","192.0.0.1");
        /** 用户名 */
        servletRegistrationBean.addInitParameter("loginUsername","admin");
        /** 密码 */
        servletRegistrationBean.addInitParameter("loginPassword","qwer@#1234");
        /** 禁用页面上的“Reset All”功能 */
        servletRegistrationBean.addInitParameter("resetEnable","false");
        return servletRegistrationBean;
    }

    /**
     * 注册一个：WebStatFilter
     * @return
     */
    @Bean
    public FilterRegistrationBean druidStatFilter2(){
        FilterRegistrationBean filterRegistrationBean = new FilterRegistrationBean(new WebStatFilter());

        /** 过滤规则 */
        filterRegistrationBean.addUrlPatterns("/*");
        /** 忽略资源 */
        filterRegistrationBean.addInitParameter("exclusions","*.js,*.gif,*.jpg,*.png,*.css,*.ico,/druid2/*");
        return filterRegistrationBean;
    }
}
